From: Ben Whitten <[email protected]> The transaction to the internal MCU starts with CMD_WAIT to start a transaction, written to CHRS followed by writing the value, the status of the command is read back from AGCSTS.
Signed-off-by: Ben Whitten <[email protected]> --- drivers/net/lora/sx130x.c | 28 ++++++++++++++++++++++++++++ drivers/net/lora/sx130x.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/drivers/net/lora/sx130x.c b/drivers/net/lora/sx130x.c index 529ca6622878..818a1c9192b3 100644 --- a/drivers/net/lora/sx130x.c +++ b/drivers/net/lora/sx130x.c @@ -337,6 +337,34 @@ static int sx130x_load_firmware(struct sx130x_priv *priv, int mcu, const struct return 0; } +static int sx130x_agc_transaction(struct sx130x_priv *priv, unsigned int val, + unsigned int *status) +{ + int ret; + + ret = regmap_write(priv->regmap, SX1301_CHRS, SX1301_AGC_CMD_WAIT); + if (ret) { + dev_err(priv->dev, "AGC transaction start failed\n"); + return ret; + } + usleep_range(1000, 2000); + + ret = regmap_write(priv->regmap, SX1301_CHRS, val); + if (ret) { + dev_err(priv->dev, "AGC transaction value failed\n"); + return ret; + } + usleep_range(1000, 2000); + + ret = regmap_read(priv->regmap, SX1301_AGCSTS, status); + if (ret) { + dev_err(priv->dev, "AGC status read failed\n"); + return ret; + } + + return 0; +} + static int sx130x_agc_calibrate(struct sx130x_priv *priv) { const struct firmware *fw; diff --git a/drivers/net/lora/sx130x.h b/drivers/net/lora/sx130x.h index 6330777f4eac..69bb9cbd1aba 100644 --- a/drivers/net/lora/sx130x.h +++ b/drivers/net/lora/sx130x.h @@ -18,6 +18,8 @@ #define SX1301_MCU_AGC_FW_VERSION 4 #define SX1301_MCU_AGC_CAL_FW_VERSION 2 +#define SX1301_AGC_CMD_WAIT 16 + #define SX1301_TX_GAIN_LUT_MAX 16 /* Page independent */ -- 2.17.1
